JPS628986A - Control operation method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a control operation method for a plurality of elevators having different upper end positions of hoistways, and particularly to a control operation method applied during earthquakes and strong winds.

[Background of the invention]

Conventionally, acceleration-type seismic sensors have been used as earthquake control operation devices, but these devices have problems, especially in skyscrapers, in that they do not operate when they should, and they operate when they do not need to operate. there were.

In other words, with conventional acceleration type earthquake detectors, when a skyscraper shakes greatly due to strong winds, the vibration occurs at the building's natural frequency, and the amplitude of the vibration displacement is large.
Therefore, even if the elevator or the like is in a situation where there is a risk of damage, the vibration acceleration may be small and the sensor may not operate. For example, let us define the amplitude of vibration displacement as D (cm
), the amplitude of the vibration acceleration is A (Gajri (Gaj
l is the unit of acceleration cIII/s! ]If the natural frequency of the building is fo, then there is the relationship A#(2πf,)"-D... , f o -0.2Hz, D=10cm
Even if A = 16Ga j! is a small value.

However, the value at which an accelerometer seismic sensor generates a signal is
Even the lowest is 25Ga7! (Ministry of Construction Architectural Guidance Division supervised by 1 Japan Building Center, Japan Elevator Safety Center ed.: Elevator vibration-resistant design and construction guidelines), so it is not detected at all. Note that if this detection level is lowered, even small-scale earthquakes that are generally not a problem will be detected, making it impractical.

From the above, conventional acceleration-type earthquake detectors are not expected to operate even when buildings are shaking significantly due to strong winds and elevators and the like are in a dangerous condition.

For this reason, in the past, an anemometer was installed on the roof of the building. For example, when the wind speed was 20 m/s or less, the elevator was operated normally, and when the wind speed was 20 to 41 m/s, the elevator was operated at a reduced speed.
When the wind speed is 6 m/s, the number of vehicles in operation is further reduced by half, and when the wind speed is 56 m/s or more, all vehicles are suspended.

However, the degree of building sway varies greatly depending on the direction of the wind and the frequency characteristics of changes in instantaneous wind pressure.In actual air traffic control, the anemometer readings are used merely as a reference, and the swaying of the building is There are problems such as having to be carried out while being observed by a supervisor or the like.

For this reason, the present inventor has proposed a wave energy type earthquake sensor as an alternative to the acceleration type earthquake sensor (Japanese Patent Application No. 59-049259).

This wave energy seismic sensor operates in the same way as during an earthquake when large tremors occur in a skyscraper during strong winds.

Incidentally, in skyscrapers, the elevator machine room is often divided into two or more locations: a top floor and an intermediate floor.

The shaking of such a building is much greater on the upper floors, so even if the shaking is large in the machine room on the top floor, it is not so great in the machine rooms on intermediate floors, and the elevator may be allowed to operate normally.

In this way, when the elevator machine room is divided into a top floor and an intermediate floor, it is not necessarily suitable to change only the earthquake sensor and apply it as is.

[Purpose of the invention]

The present invention has been made in view of the actual situation in the prior art described above, and its purpose is to provide a controlled operation method that can perform controlled operation suitable for both earthquakes and strong winds. .

[Summary of the invention]

In order to achieve this object, the present invention provides a control operation method for a plurality of elevators in which the positions of the upper ends of the hoistways are different. Set multiple vibration detection levels to
When any level is detected by the sensor, controlled operation is performed according to the level, and the sensor is one that senses wave energy or one that senses vibration speed. There is.

[Embodiments of the invention]

Hereinafter, the controlled operation method of the present invention will be explained based on the drawings.

FIG. 1 is an explanatory diagram illustrating a building to which controlled operation according to the present invention is applied, and FIG. 2 is an explanatory diagram showing the principle configuration of a device that implements the controlled operation method of the present invention.

In FIG. 1, 10 is a building, 11 is an elevator machine room provided on an intermediate floor, 12 is an elevator machine room provided on the top floor, 21.22 is an elevator hoistway,
31 and 32 are wave energy seismic sensors placed in the elevator machine rooms 11 and 12, respectively.

Further, in FIG. 2, 1 is a sensor, 2 is an earthquake sensor main body, and these constitute the wave energy type earthquake sensors 3F and 32 described above. The seismic sensor body 2 uses the output of the sensor 1 to obtain, for example, a wave energy coefficient (a quantity proportional to wave energy, the unit is kine-cm*, where kine is a unit of speed and is the same as cm/S.Sensor technology, (See March 1985 issue, P. 76, etc.)
A control signal is generated when the value reaches a predetermined set level. In addition, the above setting level is, for example, the first setting level corresponding to the upper level (seismic intensity 4.5 to 5.0) of ■ on the Japan Meteorological Agency seismic intensity scale, that is, 10 to 30 ki.
ne-cm, and the lower level of ■ on the Japan Meteorological Agency seismic intensity scale (seismic intensity 5
．． a second stage setting level corresponding to a range of 0 to 5.5);
That is, 30 to 100 kins-cm, and the third setting level corresponding to the upper level of ■ (seismic intensity 5.5 to 6.0) on the Japan Meteorological Agency seismic intensity scale, that is, 100 to 300 k.
It is set in three stages: ine-cm. Further, 50 is an earthquake and strong wind control operation device connected to these earthquake sensors 31 and 32, and 70 is an elevator control device to which this control operation device 50 is connected.

The building 10 is, for example, B, (3rd basement floor) to 4th floor.
It has the 0th floor and is equipped with the following elevator groups of banks A1 to ^5.

Bank 1: Normally, each floor from 83rd to 10th is serviced.

A2 bank: Normally the express passes through the 2nd to 9th floors, 1°10~
Each floor of the 20th floor is serviced.

Sho Bank: Normally the express passes through the 2nd to 19th floors, 1°20~
Each floor of the 30th floor is serviced.

A4 bank: Normally, express passes from 2nd to 29th floor, 1°30
We service each floor up to the 40th floor.

A5 Bank: Serves all floors from B to 40th floor.

And the above AI, A2. The A3 bank's machine room is located on the intermediate floor, as illustrated by the machine room 11 in FIG. 1, and the A4.
It is assumed that the machine room of the A5 bank is located on the top floor as illustrated in the machine room 12.

In the above situation, if the earthquake sensor 32 in the machine room 12 on the top floor is within the range of the first stage setting level, 10km
ne-cm to 30 kine-cm, and in the machine room 11 on the intermediate floor, the vibration is less than 10 kine-cm,
It is assumed that no control signal is output from the earthquake sensor 31.

In such a case, please refer to A4 above. For A5 bank, the corresponding control operation is performed when the first stage setting level is detected, that is, for A4 bank, the operation is stopped on each floor from 30th to 40th floor, and for A5 bank, operation is performed on each floor from 83rd to 40th floor. Drive with stop, AI, A2. Bank A3 elevators will continue to operate normally.

Then, when the vibration becomes even stronger and the earthquake sensor 32 detects the second stage setting level and the earthquake sensor 31 senses the first stage setting level, A4. The elevators in each bank of A5 will be stopped at each floor only for a specific number of elevators as necessary based on instructions from the monitoring room.

AI, A2. All elevators in each bank of A3 are stopped for each floor, that is, in the elbow bank, B, 1 to 10 are operated.
Drive the train with stops on each floor, 10 to 20 in A2 bank.
The train stops at each floor, and for A3 banks, 20 to 3
Operates on the 0th floor with stops at each floor.

In addition, the earthquake sensor 32 detects the set level of the third stage,
When the earthquake sensor 31 detects the setting level of the second stage, A
4. The elevators of each bank of A5 will be suspended, and
t, ^2. Each elevator in Bank A3 will operate with a limited number of elevators stopping at each floor as necessary.

When both earthquake sensors 32 and 31 detect the set level of the third stage, A1 to A1 are in a dangerous state.
Elevators in each bank of 5 will be completely suspended.

This embodiment is effective not only during strong winds or earthquakes, but also when an earthquake occurs during strong winds. Therefore, it can be employed regardless of whether it is an earthquake or a strong wind, and the apparatus implementing this embodiment is simple as illustrated in FIG.

In the above embodiment, the wave energy type earthquake sensor 31.
However, instead of this, an earthquake sensor having characteristics similar to the wave energy type earthquake sensor, such as a velocity type earthquake sensor that senses vibration speed, may be used.

〔Effect of the invention〕

Since the controlled operation method of the present invention is configured as described above, it is possible to carry out controlled operation of equipment suitable for shaking of buildings due to both earthquakes and strong winds. This has the effect of minimizing the damage to the equipment caused by this, and preventing unnecessary suspension of equipment operation.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram illustrating a building to which controlled operation according to the present invention is applied, and FIG. 2 is an explanatory diagram showing the principle configuration of a device that implements the controlled operation method of the present invention. 1...Sensor, 2...Earthquake sensor body, 10...
Building, 11.12...Elevator machine room, 2
1.22...Elevator hoistway, 31.32...Wave energy type earthquake detector, 50...Earthquake and strong wind control operation device, 70...Elevator control device. 20th 31.32

Claims (1)

[Claims] 1. In a control operation method for a plurality of elevators having different upper end positions of the hoistway, a sensor for sensing vibration is provided at each upper end of the hoistway, and a plurality of A control operation method characterized in that a vibration detection level is set, and when any level is detected by the sensor, a control operation is performed according to the level. 2. The control operation method according to claim 1, wherein the sensor is one that senses wave energy or one that senses vibration speed.